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The ARP main stud kit supplies a full set of main studs engineered for Big‑Block Chevrolet WP Merlin applications. Intended as a direct replacement stud package, the kit secures main caps and preserves crank alignment during engine builds and rebuilds, matching the BB Chevrolet WP Merlin block’s fastener pattern for proper installation by engine builders and technicians.
ARP BB Chevrolet WP Merlin Main Stud Kit
